Google Classroom
GeoGebraGeoGebra Classroom

Exploring on a Sphere

In 'explore' mode you can see the effect rotating the polar axis of the sphere around its center. Vary the the two sliders in the left hand window. In 'two points on a sphere' mode you can explore great circles on the sphere. Place the two points whereever you like on the sphere see the great circle determined by the position of the points.